Optifine and various shaders will not work when hovering the tug item. This causes terrible rendering glitches:

Tested with complimentary shaders and internal shaders

Low priority at the moment as Optifine is just a pain to deal with normally.

Can be fixed with custom render buffer, though it might be a bit slow https://gist.github.com/williewillus/30d7e3f775fe93c503bddf054ef3f93e

Will be fixed in #54 provided no performance impact is detected